code: def forward(self, x):
      n, c, h, w = paddle.shape(x)
      x0 = self.scale0(x)
      x1 = self.process1(
          F.interpolate(self.scale1(x), size=[h, w], mode="bilinear")
          + x0
      )
      x2 = self.process2(
          F.interpolate(self.scale2(x), size=[h, w], mode="bilinear")
          + x1
      )
      x3 = self.process3(
          F.interpolate(self.scale3(x), size=[h, w], mode="bilinear")
          + x2
      )
      x4 = self.process4(
          F.interpolate(self.scale4(x), size=[h, w], mode="bilinear")
          + x3
      )
  
      out = self.compression(
          paddle.concat([x0, x1, x2, x3, x4], 1)
      ) + self.shortcut(x)
      return out
  
imports: import paddle
  import paddle.nn
  import paddle.nn.functional
  from paddleseg.cvlibs import manager, param_init
  from paddleseg.models import layers
  from paddleseg.utils import utils
label_desc: Use image node_id 2 for calling the DAPPM obj's underlying member method code with example usage: obj.forward(x) and returns: out